Direct Variation Question Algebra 2?
Which of the following would represent a direct variation relationship between L and Z with 3 as the constant of proportionality?
A. LZ=3
B. L + Z = 3
C. L/Z= 3
D. L= 3/Z
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The way I remember this is it is very similiar to m or the slope of a line in the equation y = mx + b.
The only difference is in your equation if I remember correctly is y = kx. So k and m are the same thing without the b. Given this the only correct answer is D with k =3.
L = 3Z
OPTION C